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Finding the Fourth Proportional to 554,434.61, 831,354.35 and 284,451.50

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Solution

The fourth proportional to 554,434.61, 831,354.35 and 284,451.50 is: 426,524.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,434.61 : 831,354.35 = 284,451.50 : x
  2. Step 2: Convert to fraction form
    554,434.61/831,354.35 = 284,451.50/x
  3. Step 3: Cross multiply
    554,434.61x = 831,354.35 × 284,451.50
  4. Step 4: Simplify right side
    554,434.61x = 236,479,992,545.15
  5. Step 5: Solve for x
    x = 236,479,992,545.15/554,434.61
  6. Step 6: Final answer
    x = 426,524.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.